Gear puller



April 13, 1937. H F, NEST E 2,077,254

GEAR PULL fiR Filed Sept. 14, 1936 Patented Apr. 13, 1937 UNITED STATESPATENT OFFICE GEAR roman.

Henry J. F. Nestler, Atchison, Kans. Application September 14, 1936,Serial No. 100,725

1 Claim. (01. 2945) This invention relates to gear pullers and has forthe primary object the provision of a simple and inexpensive device ofthis character which is easy and quick to operate by a person and iscapable of developing maximum pulling force for the removal of gears andsimilar devices from shafts and the like.

With these and other objects in view, this invention consists in certainnovel features of construction, combination and arrangement of parts tobe hereinafter more fully described and claimed.

For a complete understanding of my invention, reference is to be had tothe following description and accompanying drawing, in which Figure 1 isa perspective view illustrating a gear puller constructed in accordancewith my invention.

Figure 2 is an end view illustrating the same.

Referring in detail to the drawing, the numeral I indicates parallelplates each having one end bent angularly and sharpened to form a jaw 2.

The plates I are' provided with spaced openings 3. The openings of oneplate are arranged to align with the openings of the other plate.

Bars 4 and 5 pass through certain aligned openings of the plates so thatsaid plates may he slid endwise of said bars for the purpose ofadjusting the jaws 2 towards and from each other. The bar 4 is solid,while the bar 5 is tubular. The

bar 4 has an enlargement 6 provided with a screwthreaded opening, thethreads of which mesh with feed threads 1 of a feed bar 8. One end orthe bar 8 is shaped or reduced, as shown at 9. for engagement with ashaft, axle or like device, and the jaws are brought in; engagement witha gear puller or similar device mounted on said shaft or axle. The bar 5has an opening therethrough through which extends the feed bar 8 andlocated in said opening is a bushing 9 for the purpose of protecting thefeed threads I. One end of the feed bar is shaped to form wrench or toolengaging faces "I. The bars .4 and 5 cooperate in preventing the platesI from movin out of parallelism.

In operation, the jaws are applied to a gear and the end 9 of the feedbar bears against the shaft and by rotating said feed bar the gear willbe pulled from the shaft with ease.

Having described the invention, I claim:

A gear puller comprising plates, jaws integral with said plates toengage a gear, bars slidable through said plates for maintaining saidplates in parallelism and to permit the plates to move towards and fromeach other, said bars having openings, feed threads formed on the wallsof one of the openings, at bushing located in the other opening, a feedbar having feed threads meshing with the feed threads of said openingand extending through the bushing and adapted to have one end engagedwith a shaft on which the gear is located whereby rotation of the feedbar will bring about a removal of the gear from the shaft.

' HENRY J. F. NESTLERn-a

